Home
Class 12
CHEMISTRY
Mass and energy are conserved is demonst...

Mass and energy are conserved is demonstrated by

A

first law of thermodynamics

B

law of conservation of energy

C

law of conservation of mass

D

modified form of Ist law of thermodynamics

Text Solution

Verified by Experts

The correct Answer is:
A

In modified form of Ist law of thermodynamics, mass and energy both are conserved.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETIC

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|83 Videos
  • CHEMICAL KINETICS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|20 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|11 Videos

Similar Questions

Explore conceptually related problems

Assertion: Mass and energy are not conserved separately, but are conserved as a single entity called mass-energy. Reason: Mass and energy conservation can be obtained by Einstein equation for energy.

Assertion :- Mass and energy are not conserved separately,but are conserved as a single entity called 'mass energy'. Reason :- This is because one can be obtained at the cost of the other as per Einstein's equation.

Which of the following statements is false for collisions- (1)Momentum is conserved in elastic collisions but not in inelastic collisions. (2)Total-kinetic energy is conserved in elastic collisions but momentum is not conserved. (3)Total kinetic energy and momentum both are conserved in all types of collisions (4)Total kinetic energy is not conserved in inelastic collisions but momentum is conserved

Assertion: According to law of conservation of machainical energy change in potential energy is equal and opposite to the change in kinetic energy Reason: Mechanical energy is not a conserved quantity.

(a) Under what conditions energy is conserved ? (b) What is the only restriction to the principle of conservation of energy ?

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL THERMODYNAMICS AND ENERGETIC-MHT CET Corner
  1. The bond energy is the energy required to

    Text Solution

    |

  2. For the reaction 2H(2)(g)+O(2)(g) to 2H(2)O(g), DeltaH^(ө)=-573.2kJ ...

    Text Solution

    |

  3. For an ideal gas, the heat of reaction at constant pressure and consta...

    Text Solution

    |

  4. Hess's law is based on

    Text Solution

    |

  5. Which of the following is a path function?

    Text Solution

    |

  6. In a closed containerr, a liquid is stirred with a paddle to increse t...

    Text Solution

    |

  7. The standard molar heat of formation of ethane, CO(2) and water (l) ar...

    Text Solution

    |

  8. The CO(2) gas does not follow gaseous laws at all ranges of pressure a...

    Text Solution

    |

  9. Heat of neutralisation will be minimum for which of the following comb...

    Text Solution

    |

  10. 2 moles of helium gas expanded isothermally and irreversibly at 27^(@)...

    Text Solution

    |

  11. Heat of formation of SO(2) is -298 kJ. What is the heat of combustion ...

    Text Solution

    |

  12. Bond energy of hydrogen gas is -433 kJ. How much is the bond dissociat...

    Text Solution

    |

  13. For the reaction, PCl(5)(g)to PCl(3)(g)+Cl(2)(g)

    Text Solution

    |

  14. Enthalpy (H) is equal to

    Text Solution

    |

  15. If the heat formation of CO(2) is -393kJ. The amount of heat evolved i...

    Text Solution

    |

  16. If a gas, at constant temperature and pressure expands, then its

    Text Solution

    |

  17. Molar heat capacity at constant volume can be given a

    Text Solution

    |

  18. Mass and energy are conserved is demonstrated by

    Text Solution

    |

  19. If DeltaG^(@) for the reaction given below is 1.7 kJ, the equilibrium ...

    Text Solution

    |

  20. It is general principle that the less energy a system constains, it is

    Text Solution

    |